Add Pay To Relay #130

Pledge
If the feature or idea is implemented or resolved to your satisfaction, please consider making a small monetary donation to support the continued development and independence of this project. To help the maintainers gauge on where to focus their effort, please include the amount of your pledge. A wallet address or Lightning invoice will be provided once the feature is complete.

Is your feature request related to a problem? Please describe.
A clear and concise description of what the problem is. Ex. I'm always frustrated when [...]

Describe the solution you'd like
A clear and concise description of what you want to happen.

Describe alternatives you've considered
A clear and concise description of any alternative solutions or features you've considered.

Additional context
Add any other context or screenshots about the feature request here.